Linger the "more suggestions" when the user is sliding the touch point

Bug: 5299024
Change-Id: I00b5e59ba480cbf057bdd69d1357d2c477be90f7
diff --git a/java/src/com/android/inputmethod/latin/MoreSuggestionsView.java b/java/src/com/android/inputmethod/latin/MoreSuggestionsView.java
index 695e60f..15a0cec 100644
--- a/java/src/com/android/inputmethod/latin/MoreSuggestionsView.java
+++ b/java/src/com/android/inputmethod/latin/MoreSuggestionsView.java
@@ -230,10 +230,13 @@
 
     @Override
     public boolean dispatchTouchEvent(MotionEvent me) {
-        final int x = (int)me.getX();
-        final int y = (int)me.getY();
+        final int index = me.getActionIndex();
+        final int id = me.getPointerId(index);
+        final PointerTracker tracker = PointerTracker.getPointerTracker(id, this);
+        final int x = (int)me.getX(index);
+        final int y = (int)me.getY(index);
         final boolean inside = (x >= 0 && x < getWidth() && y >= 0 && y < getHeight());
-        if (inside) {
+        if (inside || tracker.isInSlidingKeyInput()) {
             return super.dispatchTouchEvent(me);
         } else {
             dismissMoreKeysPanel();